Calculator Tools/Scientific Calculator
Scientific Calculator
Trigonometric functions, logarithms, and scientific calculations
Calculator
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Frequently Asked Questions
DEG (degrees) measures angles in the 0-360° system familiar from everyday use. RAD (radians) measures angles where 2π = 360°, commonly used in mathematics and physics. Use DEG for practical applications, RAD for calculus and advanced math.
In DEG mode, sin(90) = sin(90°) = 1, which is correct. In RAD mode, sin(90) calculates sin(90 radians), which is a completely different angle (about 5156°). For sin(π/2) = 1 in RAD mode, enter the actual radian value.
log is the common logarithm (base 10) - log(100) = 2 because 10² = 100. ln is the natural logarithm (base e ≈ 2.718) - used extensively in calculus, statistics, and natural growth calculations. ln(e) = 1.
MC clears memory, MR recalls the stored value, M+ adds the current display to memory, M- subtracts from memory. These are useful for storing intermediate results in complex calculations without writing them down.
Factorials grow extremely fast - 170! already exceeds JavaScript's maximum representable number (about 1.8×10³⁰⁸). For factorials larger than 170!, the result overflows to Infinity. For such large calculations, specialized mathematical software is needed.